Granted Patent
Utility
US 6,606,447 · App. 09/815,382
Optical attenuator including dual control loops
Inventors:
Roger Brown, Earl A Dennis
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Mar 22, 2001
Inventors
Roger Brown
Earl A Dennis
Assignee (at issue)
Manconi Communications Limited
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.